<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Captcha Verification</title>
</head>
<body>

<form action="/verify" method="post">
    <label for="captcha">请输入验证码:</label>
    <input type="text" id="captcha" name="userCaptcha">
    <img onclick = "this.src='/captcha?d='+new Date()*1" src="/captcha" >
    <button type="submit">验证</button>
</form>

</body>
</html>